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Student Instructions
1) Click 
to begin the activity
2) Use the 
tool to answer each question
3) Click on the 
when you are done with your work
Teacher Notes (not visible to students)
Level 4: I can mentally add a number within 10 to a two-digit number, and explain how and why I did it; mentally subtract a number within 10 from a two-digit number, and explain how and why I did it. Level 3: I can mentally add or subtract 10 to or from a two-digit number and explain how I did the problem. *I can understand essential vocabulary, such as: Mental math, Digit *I can use models, drawings, or strategies to add or subtract 10 from multiple of ten. *I can use models, drawings, or strategies to add or subtract 10 from a two-digit number.
